approximation

英 [əˌprɒksɪˈmeɪʃn]

美 [əˌprɑːksɪˈmeɪʃn]

n.  近似值; 粗略估算; 类似事物

复数：approximations　

医学

BNC.10242 / COCA.13653

牛津词典

noun

• 近似值；粗略估算
  an estimate of a number or an amount that is almost correct, but not exact
  1. That's just an approximation, you understand.
     你知道那仅仅是近似值。
• 类似事物
  a thing that is similar to sth else, but is not exactly the same
  1. Our results should be a good approximation to the true state of affairs.
     我们的结果应该和实际情况相当接近。

柯林斯词典

• N-COUNT 接近；近似
  Anapproximationis a fact, object, or description which is similar to something else, but which is not exactly the same.
  1. That is a fair approximation of the way in which the next boss is being chosen.
     那和下一任老板的选任方式相当类似。
• N-COUNT 近似值；粗略估计
  Anapproximationis a number, calculation, or position that is close to a correct number, time, or position, but is not exact.
  1. Clearly that's an approximation, but my guess is there'll be a reasonable balance.
     很明显那是个粗略的估计，但我猜会有一笔不少的余额。

英英释义

noun

• the act of bringing near or bringing together especially the cut edges of tissue
  Synonym:bringing close together
• the quality of coming near to identity (especially close in quantity)
• an approximate calculation of quantity or degree or worth
  1. an estimate of what it would cost
  2. a rough idea how long it would take
  Synonym:estimateestimationidea
• an imprecise or incomplete account
  1. newspapers gave only an approximation of the actual events

双语例句

• Using the random weighting method, its approximating distribution which is more precise than normal approximation is obtained.
  研究了一类有渐近展开分布的逼近问题，应用随机加权法给出了比正态逼近精度更高的模拟分布。
• A new application of genetic algorithm in FIR filter with weighting Chebyshev optimal approximation method is presented.
  介绍了一种遗传算法在FIR数字滤波器设计&加权切比雪夫最佳逼近准则优化设计方法中的应用。
• Finally the approximation algorithm for the minimum weak vertex cover set is analyzed based on the maximal flow partition.
  进一步分析了求解基于最大流划分的最小弱顶点覆盖集的近似算法。
• The method can availably solve the problems of bad training approximation and generalization.
  该方法能有效地解决训练精度和泛化能力差的问题。
• This paper proposed a new algorithm for image restoration based on spatial continuity and differential approximation.
  文中提出了一种基于微分近似、利用图像的空间连续性进行图像修复的算法。
• He had coarsened his voice to an approximation of Cockney.
  他让自己的口音变得粗俗起来，接近伦敦东区的发音。
• The results by the small slope approximation are also compared with those of the Kirchhoff approximation with.
  同时将小斜率近似与考虑遮蔽效应的基尔霍夫近似和有关实验测量结果作了比较。
• PSO algorithm for polygonal approximation of digital curves restricted by the solution of reference is proposed.
  提出了一种参照解约束下的数字曲线多边形逼近的PSO求解算法。
• But, if you fix a point, then we have linear approximation.
  但是，如果你固定了一个点，就能得到线性近似。
• Some theoretical problems related to quantum adiabatic approximation is discussed in this part.
  这一部分主要讨论与量子绝热近似有关的一些理论问题。